揭秘女人为何比男人寿命更长

资料图：男性的身体更不耐用

　　Professor Kirkwood believes there is now growing evidence to suggest that men are more disposable than women, because the cells of their bodies are not genetically programmed to last as long as they are in females.

　　柯克伍德教授认为，现在有越来越多的证据表明，同女性相比，男性的身体更不耐用，其原因是男性的身体细胞基因构造不像女性的一样能维持那么久。

　　Many scientists believe that the aging process is caused by tiny faults throughout our body. As the tiny faults build up the length of our lives is determined by how quickly our body is able to carry out running repairs.

　　许多科学家认为，人体衰老的过程是由全身的各种微小毛病引起的。因为这些微小毛病不断累积，人类生命的长短也将取决于身体进行自我修复的速度有多快。

　　As the cells miss opportunities to repair themselves our body gradually degrades until we eventually die.

　　由于各种细胞错过自我修复的机会，我们的身体状况也会逐步恶化，直到最终死亡。

　　Professor Kirkwood’s theory behind why our cells do not mend every tiny problem in our body is that it is built into our DNA. The reason we do not live forever is because it would have cost our hunter-gather ancestors too much energy to constantly replenish cells when hunger was a more immediate danger, he says.

　　至于我们的细胞为何不能修复身体中的各种微小毛病，柯克伍德教授认为，这是由我们DNA的先天构造决定的。他说，我们不能长生不老的原因在于，我们的祖先是以打猎和采集为生的，不断修复细胞会使他们耗费太多的能量，而饥饿对他们来说是更直接的威胁。